INCAPE 05401
INSTITUTO DE INVESTIGACIONES EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Ventajas del uso del lantano frente al disparo de la reacción de combustión de hollín
Autor/es:
M.A. PERALTA; M.A. ULLA; C.A. QUERINI
Lugar:
La Plata, Argentina
Reunión:
Congreso; XV Congreso Argentino de Catálisis y 4° Congreso de Catálisis del MERCOSUR; 2007
Institución organizadora:
CINDECA - CONACA (UNLP-CONICET)
Resumen:
In this work it is shown that catalyst overheating produced by runaway of the soot combustion reaction, can be moderated by proper selection of catalyst support, being the La2O3 a good choice for this. In K/La2O3 catalysts, lanthanum compounds decompose in the same temperature range in which soot combustion occurs, thus absorbing part of the heat released in the combustion process and thus avoiding the reaction runaway. Having into account this property of La2O3 supported catalysts, K/La2O3 and K/CeO2 catalytic behaviors are compared in reaction conditions in which a reaction runaway could occur. Catalytic activity was followed by Temperature-programmed-oxidation, and evolved heats were measured by Differential Scanning Calorimetry. Catalysts are characterized by XRD, FTIR, and High Frequency CO2 Pulses.
